average velocity

[yawho]

Not sure how to do this question from the assignment.
An object is projected at an angle of 49 degrees with the horizontal. It is moving at 5 m/s at its maximum height of 7.8 m above the point of projection. Find its average horizontal velocity from the time of projection to the time when its height is 4.9 m above the point of projection. Consider zero air resistance.

[Phy124]

Well if it wasn't for all that other information, I would've just said the answer was 5m/s.

My logic; when an object is at it's maximum height it's vertical velocity is 0 m/s, therefore it is all horizontal, which stated is 5m/s. Also, horizontal velocity should remain constant as there is no air resistance so the average horizontal would be 5m/s, no? 

I must've done some pretty big misinterpreting somewhere along the line, or maybe I'm just really "rusty" 

edit: If it was like this:

Find its average horizontal velocity...

It would make more sense, but other than that, I've got nothin'.

[yawho]

Thx, your logic is good, I'll use your answer.

[Phy124]

No worries